1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.21 2003/03/03 22:00:03 albertel Exp $
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27: # (Navigate problems for statistical reports
28: # YEAR=2002
29: # 5/12,7/26,9/7,11/22 Behrouz Minaei
30: #
31: ###
32:
33: package Apache::lonproblemanalysis;
34:
35: use strict;
36: use Apache::lonnet();
37: use Apache::lonhtmlcommon();
38: use GDBM_File;
39:
40: my $jr;
41:
42: sub BuildProblemAnalysisPage {
43: my ($cacheDB, $r)=@_;
44:
45: my %cache;
46: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
47: $r->print('Unable to tie database.');
48: return;
49: }
50:
51: my $Ptr = '';
52: $Ptr .= '<table border="0"><tbody>';
53: $Ptr .= '<tr><td align="right"><b>Select Sections</b>';
54: $Ptr .= '</td>'."\n";
55: $Ptr .= '<td align="left">'."\n";
56: my @sectionsSelected = split(':',$cache{'sectionsSelected'});
57: my @sections = split(':',$cache{'sectionList'});
58: $Ptr .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
59: $Ptr .= '</td></tr>'."\n";
60: $Ptr .= '<tr><td align="right"><b>Intervals</b></td>'."\n";
61: $Ptr .= '<td align="left">';
62: $Ptr .= &IntervalOptions($cache{'Interval'});
63: $Ptr .= '</td></tr></table><br>';
64: $r->print($Ptr);
65: $r->rflush();
66: # $r->print($cache{'OptionResponses'}.'<br>');
67: $r->print(&OptionResponseTable($cache{'OptionResponses'}, \%cache, $r));
68:
69: untie(%cache);
70:
71: return;
72: }
73:
74: sub BuildAnalyzePage {
75: my ($cacheDB, $students, $courseID,$r)=@_;
76:
77: $jr = $r;
78: my $c = $r->connection;
79:
80: my $Str = '</form>';
81: my %cache;
82:
83: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
84: $Str .= 'Unable to tie database.';
85: $r->print($Str);
86: return;
87: }
88:
89: # Remove students who don't have the proper section.
90: my @sectionsSelected = split(':',$cache{'sectionsSelected'});
91:
92: my $studentCount = scalar @$students;
93: for(my $studentIndex=$studentCount-1; $studentIndex>=0;
94: $studentIndex--) {
95: my $value = $cache{$students->[$studentIndex].':section'};
96: my $found = 0;
97: foreach (@sectionsSelected) {
98: if($_ eq 'none') {
99: if($value eq '' || !defined($value) || $value eq ' ') {
100: $found = 1;
101: last;
102: }
103: } else {
104: if($value eq $_) {
105: $found = 1;
106: last;
107: }
108: }
109: }
110: if($found == 0) {
111: splice(@$students, $studentIndex, 1);
112: }
113: }
114: unless(untie(%cache)) {
115: $r->print('Can not untie hash.');
116: $r->rflush();
117: }
118:
119: &Apache::lonhtmlcommon::Close_PrgWin($r);
120:
121: ### jason code for checing is there data in cache
122: # my $error =
123: # &Apache::loncoursedata::DownloadStudentCourseDataSeparate($students,
124: # 'true',
125: # $cacheDB,
126: # 'true',
127: # 'true',
128: # $courseID,
129: # $r, $c);
130: # if($error ne 'OK') {
131: # $r->print($error.'<br>Error downloading course data<br>');
132: # return;
133: # }
134:
135: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
136: $Str .= 'Unable to tie database.';
137: $r->print($Str);
138: return;
139: }
140:
141: my ($problemId, $part, $responseId)=split(':',$cache{'AnalyzeInfo'});
142: my $uri = $cache{$problemId.':source'};
143: my $problem = $cache{$problemId.':problem'};
144: my $title = $cache{$problemId.':title'};
145: my $interval = $cache{'Interval'};
146: my $heading = 'Restore this particular Option Response Problem '.
147: 'Results, Please wait...';
148:
149: my %ConceptData;
150: $ConceptData{"Interval"} = $interval;
151:
152: #Initialize the option response true answers
153: my ($analyzeData) = &InitAnalysis($uri, $part, $responseId, $problem,
154: $students->[0], $courseID);
155: if(defined($analyzeData->{'error'})) {
156: $Str .= $analyzeData->{'error'}.'<br>Incorrect part requested.<br>';
157: $r->print($Str);
158: return;
159: }
160:
161: $r->print($Str);
162: $Str = '';
163: if($c->aborted()) { untie(%cache); return; }
164:
165: #compute the intervals
166: &Interval($part, $problem, $interval, $analyzeData->{'concepts'},
167: \%ConceptData);
168:
169: $title =~ s/\ /"_"/eg;
170: $Str .= '<br><b>'.$uri.'</b>';
171:
172: $r->print($Str);
173: $Str = '';
174: if($c->aborted()) { untie(%cache); return; }
175:
176:
177: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r, $title,
178: $heading,$#$students+1);
179:
180: #Java script Progress window
181: for(my $index=0; $index<(scalar @$students); $index++) {
182: if($c->aborted()) { untie(%cache); return; }
183: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
184: 'last student '.$students->[$index]);
185: &OpStatus($problemId, $students->[$index], \%ConceptData,
186: $analyzeData->{'foil_to_concept'}, $analyzeData,
187: \%cache, $courseID);
188: }
189: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
190:
191: $Str .= '<br>';
192: for (my $k=0; $k<$interval; $k++ ) {
193: if($c->aborted()) { untie(%cache); return $Str; }
194: $Str .= &DrawGraph($k, $title, $analyzeData->{'concepts'},
195: \%ConceptData);
196: $r->print($Str);
197: $Str = '';
198: }
199: for (my $k=0; $k<$interval; $k++ ) {
200: if($c->aborted()) { untie(%cache); return $Str; }
201: $Str .= &DrawTable($k, $analyzeData->{'concepts'}, \%ConceptData);
202: $r->print($Str);
203: $Str = '';
204: }
205: my $Answ=&Apache::lonnet::ssi($uri);
206: $Str .= '<br><b>Here you can see the Problem:</b><br>'.$Answ;
207: $Str .= '<form>';
208: $r->print($Str);
209:
210: untie(%cache);
211:
212: return;
213: }
214:
215: #---- Problem Analysis Web Page ----------------------------------------------
216:
217: sub IntervalOptions {
218: my ($selectedInterval)=@_;
219:
220: my $interval = 1;
221: for(my $n=1; $n<=7; $n++) {
222: if($selectedInterval == $n) {
223: $interval = $n;
224: }
225: }
226:
227: my $Ptr = '<select name="Interval">'."\n";
228: for(my $n=1; $n<=7;$ n++) {
229: $Ptr .= '<option';
230: if($interval == $n) {
231: $Ptr .= ' selected';
232: }
233: $Ptr .= '>'.$n."</option>"."\n";
234: }
235: $Ptr .= '</select>'."\n";
236:
237: return $Ptr;
238: }
239:
240: sub OptionResponseTable {
241: my ($optionResponses,$cache,$r)=@_;
242:
243: my @optionResponses=split(':::', $optionResponses);
244: my %partCount;
245: my %sequences;
246: my @orderedSequences=();
247: foreach(@optionResponses) {
248: my ($sequence, $problemId, $part, undef)=split(':',$_);
249: $partCount{$problemId.':'.$part}++;
250: if(!defined($sequences{$sequence})) {
251: push(@orderedSequences, $sequence);
252: $sequences{$sequence} = $_;
253: } else {
254: $sequences{$sequence} .= ':::'.$_;
255: }
256: }
257:
258: my $Str = '';
259:
260: foreach my $sequence (@orderedSequences) {
261: my @optionProblems = split(':::', $sequences{$sequence});
262:
263: $Str .= '<b>'.$cache->{$sequence.':title'}.'</b>'."\n";
264: $Str .= "<table border=2><tr><th> \# </th><th> Problem Title </th>";
265: $Str .= '<th> Resource </th><th> Analysis </th></tr>'."\n";
266:
267: my $count = 1;
268: foreach(@optionProblems) {
269: my (undef, $problemId, $part, $response)=
270: split(':',$optionProblems[$count-1]);
271: # split(':',$sequences{$sequence});
272: my $uri = $cache->{$problemId.':source'};
273: my $title = $cache->{$problemId.':title'};
274:
275: my $Temp = '<a href="'.$uri.'" target="_blank">'.$title.'</a>';
276: $Str .= '<tr>';
277: $Str .= '<td> '.$count.' </td>';
278: $Str .= '<td bgcolor="#DDFFDD">'.$Temp.'</td>';
279: $Str .= '<td bgcolor="#EEFFCC">'.$uri.'</td>';
280: if($partCount{$problemId.':'.$part} < 2) {
281: $Str .= '<td><input type="submit" name="Analyze:::';
282: $Str .= $problemId.':'.$part.'" value="';
283: $Str .= 'Part '.$part;
284: $Str .= '" /></td></tr>'."\n";
285: } else {
286: my $value = $problemId.':'.$part.':'.$response;
287: $Str .= '<td><input type="submit" name="Analyze:::'.$value;
288: $Str .= '" value="';
289: $Str .= 'Part '.$part.' Response '.$response;
290: $Str .= '" /></td></tr>'."\n";
291: }
292: $count++;
293: }
294: $Str .= '</table><br>'."\n";
295: }
296:
297: return $Str;
298: }
299:
300: #---- END Problem Analysis Web Page ------------------------------------------
301:
302: #---- Analyze Web Page -------------------------------------------------------
303:
304: # Joson code for reading data from cache
305: =pod
306: sub OpStatus {
307: my ($problemID, $student, $ConceptData, $foil_to_concept,
308: $analyzeData, $cache)=@_;
309:
310: my $ids = $analyzeData->{'parts'};
311:
312: my @True = ();
313: my @False = ();
314: my $flag=0;
315:
316: my $tries=0;
317:
318: foreach my $id (@$ids) {
319: my ($part, $response) = split(/\./, $id);
320: my $time=$cache->{$student.':'.$problemID.':'.$part.':timestamp'};
321: my @submissions = split(':::', $cache->{$student.':'.$problemID.':'.
322: $part.':'.$response.
323: ':submission'});
324: foreach my $Resp (@submissions) {
325: my %submission=&Apache::lonnet::str2hash($Resp);
326: foreach (keys(%submission)) {
327: if($submission{$_}) {
328: my $answer = $analyzeData->{$id.'.foil.value.'.$_};
329: if($submission{$_} eq $answer) {
330: &Decide("true", $foil_to_concept->{$_},
331: $time, $ConceptData);
332: } else {
333: &Decide("false", $foil_to_concept->{$_},
334: $time, $ConceptData);
335: }
336: }
337: }
338: }
339: }
340:
341: return;
342: }
343: =cut
344:
345:
346: #restore the student submissions and finding the result
347:
348: sub OpStatus {
349: my ($problemID, $student, $ConceptData, $foil_to_concept,
350: $analyzeData, $cache, $courseID)=@_;
351:
352: my $ids = $analyzeData->{'parts'};
353: my ($uname,$udom)=split(/\:/,$student);
354: my $symb = $cache->{$problemID.':problem'};
355:
356: my @True = ();
357: my @False = ();
358: my $flag=0;
359: my $tries=0;
360:
361: foreach my $id (@$ids) {
362: my ($part, $response) = split(/\./, $id);
363: my %reshash=&Apache::lonnet::restore($symb,$courseID,$udom,$uname);
364: if ($reshash{'version'}) {
365: my $tries=0;
366: for (my $version=1;$version<=$reshash{'version'};$version++) {
367: my $time=$reshash{"$version:timestamp"};
368: foreach my $key (sort(split(/\:/,$reshash{$version.':keys'}))) {
369: if (($key=~/\.(\w+)\.(\w+)\.submission$/)) {
370: my $Id1 = $1; my $Id2 = $2;
371: #check if this is a repeat submission, if so skip it
372: if ($reshash{"$version:resource.$Id1.previous"}) { next; }
373: #if no solved this wasn't a real submission, ignore it
374: if (!defined($reshash{"$version:resource.$Id1.solved"})) {
375: &Apache::lonxml::debug("skipping ");
376: next;
377: }
378: my $Resp = $reshash{"$version:$key"};
379: my %submission=&Apache::lonnet::str2hash($Resp);
380: foreach (keys %submission) {
381: my $Ansr = $analyzeData->{"$Id1.$Id2.foil.value.$_"};
382: if($submission{$_} eq $Ansr) {
383: &Decide("true", $foil_to_concept->{$_},
384: $time, $ConceptData);
385: } else {
386: &Decide("false", $foil_to_concept->{$_},
387: $time, $ConceptData);
388: }
389: }
390: }
391: }
392: }
393: }
394: }
395:
396: return;
397: }
398:
399:
400: sub DrawGraph {
401: my ($k,$Src,$Concepts,$ConceptData)=@_;
402: my $Max=0;
403: my @data1;
404: my @data2;
405:
406: # Adjust Data and find the Max
407: for (my $n=0; $n<(scalar @$Concepts); $n++ ) {
408: my $tmp=$Concepts->[$n];
409: $data1[$n]=$ConceptData->{$tmp.'.'.$k.'.true'};
410: $data2[$n]=$ConceptData->{$tmp.'.'.$k.'.false'};
411: my $Sum=$data1[$n]+$data2[$n];
412: if($Max < $Sum) {
413: $Max=$Sum;
414: }
415: }
416: for (my $n=0; $n<(scalar @$Concepts); $n++ ) {
417: if ($data1[$n]+$data2[$n]<$Max) {
418: $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
419: }
420: }
421: my $P_No = (scalar @data1);
422:
423: if($Max > 1) {
424: $Max += (10 - $Max % 10);
425: $Max = int($Max);
426: } else {
427: $Max = 1;
428: }
429:
430: my $Titr=($ConceptData->{'Interval'}>1) ? $Src.'_interval_'.($k+1) : $Src;
431: # $GData=$Titr.'&Concepts'.'&'.'Answers'.'&'.$Max.'&'.$P_No.'&'.$data1.'&'.$data2;
432: my $GData = '';
433: $GData = $Titr.'&Concepts&Answers&'.$Max.'&'.$P_No.'&';
434: $GData .= (join(',',@data1)).'&'.(join(',',@data2));
435:
436: return '<IMG src="/cgi-bin/graph.png?'.$GData.'" border=1/>';
437: }
438:
439: sub DrawTable {
440: my ($k,$Concepts,$ConceptData)=@_;
441: my $Max=0;
442: my @data1;
443: my @data2;
444: my $Correct=0;
445: my $Wrong=0;
446: for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
447: my $tmp=$Concepts->[$n];
448: $data1[$n]=$ConceptData->{$tmp.'.'.$k.'.true'};
449: $Correct+=$data1[$n];
450: $data2[$n]=$ConceptData->{$tmp.'.'.$k.'.false'};
451: $Wrong+=$data2[$n];
452: my $Sum=$data1[$n]+$data2[$n];
453: if($Max < $Sum) {
454: $Max=$Sum;
455: }
456: }
457: for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
458: if ($data1[$n]+$data2[$n]<$Max) {
459: $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
460: }
461: }
462: my $P_No = (scalar @data1);
463: my $Str = '';
464: # $Str .= '<br><b>From: ['.localtime($ConceptData->{'Int.'.($k-1)});
465: # $Str .= '] To: ['.localtime($ConceptData->{"Int.$k"}).']</b>';
466: $Str .= "\n".'<table border=2>'.
467: "\n".'<tr>'.
468: "\n".'<th> # </th>'.
469: "\n".'<th> Concept </th>'.
470: "\n".'<th> Correct </th>'.
471: "\n".'<th> Wrong </th>'.
472: "\n".'</tr>';
473:
474: for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
475: $Str .= '<tr>'."\n";
476: $Str .= '<td>'.($n+1).'</td>'."\n";
477: my ($currentConcept) = split('::',$Concepts->[$n]);
478: $Str .= '<td bgcolor="EEFFCC">'.$currentConcept;
479: $Str .= '</td>'."\n";
480: $Str .= '<td bgcolor="DDFFDD">'.$data1[$n].'</td>'."\n";
481: $Str .= '<td bgcolor="FFDDDD">'.$data2[$n].'</td>'."\n";
482: $Str .= '</tr>'."\n";
483: }
484: $Str .= '<td></td><td><b>From:['.localtime($ConceptData->{'Int.'.$k});
485: $Str .= '] To: ['.localtime($ConceptData->{'Int.'.($k+1)}-1);
486: $Str .= ']</b></td><td>'.$Correct.'</td><td>'.$Wrong.'</td>';
487: $Str .= '</table>'."\n";
488:
489: return $Str;
490: #$Apache::lonxml::debug=1;
491: #&Apache::lonhomework::showhash(%ConceptData);
492: #$Apache::lonxml::debug=0;
493: }
494:
495: #---- END Analyze Web Page ----------------------------------------------
496:
497: sub Decide {
498: #deciding the true or false answer belongs to each interval
499: my ($type,$concept,$time,$ConceptData)=@_;
500: my $k=0;
501: while($time > $ConceptData->{'Int.'.($k+1)} &&
502: $k < $ConceptData->{'Interval'}) {
503: $k++;
504: }
505: $ConceptData->{$concept.'.'.$k.'.'.$type}++;
506:
507: return;
508: }
509:
510: sub InitAnalysis {
511: my ($uri,$part,$responseId,$problem,$student,$courseID)=@_;
512: my ($name,$domain)=split(/\:/,$student);
513:
514: my %analyzeData;
515: # Render the student's view of the problem. $Answ is the problem
516: # Stringafied
517: my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze',
518: 'grade_username' => $name,
519: 'grade_domain' => $domain,
520: 'grade_courseid' => $courseID,
521: 'grade_symb' => $problem));
522: my ($Answer)=&Apache::lonnet::str2hashref($Answ);
523:
524: my $found = 0;
525: my @parts=();
526: if(defined($responseId)) {
527: foreach (@{$Answer->{'parts'}}) {
528: if($_ eq $part.'.'.$responseId) {
529: push(@parts, $_);
530: $found = 1;
531: last;
532: }
533: }
534: } else {
535: foreach (@{$Answer->{'parts'}}) {
536: if($_ =~ /$part/) {
537: push(@parts, $_);
538: $found = 1;
539: last;
540: }
541: }
542: }
543:
544: if($found == 0) {
545: $analyzeData{'error'} = 'No parts matching selected values';
546: return \%analyzeData;
547: }
548:
549: my @Concepts=();
550: my %foil_to_concept;
551: foreach my $currentPart (@parts) {
552: if(defined($Answer->{$currentPart.'.concepts'})) {
553: foreach my $concept (@{$Answer->{$currentPart.'.concepts'}}) {
554: push(@Concepts, $concept);
555: foreach my $foil (@{$Answer->{$currentPart.'.concept.'.
556: $concept}}) {
557: $analyzeData{$currentPart.'.foil.value.'.$foil} =
558: $Answer->{$currentPart.'.foil.value.'.$foil};
559: $foil_to_concept{$foil} = $concept;
560: }
561: }
562: } else {
563: foreach (keys(%$Answer)) {
564: if(/$currentPart.foil\.value\.(.*)$/) {
565: push(@Concepts, $1);
566: $foil_to_concept{$1} = $1;
567: $analyzeData{$currentPart.'.foil.value.'.$1} =
568: $Answer->{$currentPart.'.foil.value.'.$1};
569: }
570: }
571: }
572: }
573:
574: $analyzeData{'parts'} = \@parts;
575: $analyzeData{'concepts'} = \@Concepts;
576: $analyzeData{'foil_to_concept'} = \%foil_to_concept;
577:
578: return \%analyzeData;
579: }
580:
581: sub Interval {
582: my ($part,$symb,$interval,$Concepts,$ConceptData)=@_;
583: my $Int=$interval;
584: my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb);
585: my $opn = &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb);
586: my $add=int(($due-$opn)/$Int);
587: $ConceptData->{'Int.0'}=$opn;
588: for(my $i=1; $i<$Int; $i++) {
589: $ConceptData->{'Int.'.$i}=$opn+$i*$add;
590: }
591: $ConceptData->{'Int.'.$Int}=$due;
592: for(my $i=0; $i<$Int; $i++) {
593: for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
594: my $tmp=$Concepts->[$n];
595: $ConceptData->{$tmp.'.'.$i.'.true'}=0;
596: $ConceptData->{$tmp.'.'.$i.'.false'}=0;
597: }
598: }
599: }
600: 1;
601: __END__
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